I had a few interactions with some women last night in a club. Sometimes I did get choosen signals but for some reason I always mess up with the girls. What can I do to improve?

Interaction 1. A girl was checking me out few times. my friend told me just dance behind her and look how she responds. That's not really my style so I did go to her she was with 2friends. I used my standard pickup line "are you girls sisters?" They were laughing a bit, I introduced my self and didn't dance with her because she was acting weird. Like acting hard to get.

int2 In the smoking area I stood next to a girl she was saying which one off you guys smell that great. I did go with my neck to her. She was like mmhmmm. Then I introduced my self to her, and used my standard pick up line. She responded with "yes we are sisters". I told her you look like the hot annoying sister and she is the shy one. She responded with " I see what you are doing haha!" Then she was like I'm going inside see you in the club. (I forget her face because I did drink to much and talked to few girls so I forget the faces)

Int3 Went almost the same as #1 I got choosen signals but I fuck up with talking. Sometimes I feel like I need to shutup and just be that guy to dance behind her.

What funny was is that from #1 the girl. I saw her few hours later in the club she did push to my face softly to get attention from me smiled a bit then she didn't look anymore. This is so mind fuck, I was like wtf am I supposed to do.

Can anyone help me out with nightgame? So I just need to grind against her and shutup or what should I do?